Home / 15,951.21-22,012.20-8,877.48

Finding the Fourth Proportional to 15,951.21, 22,012.20 and 8,877.48

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Solution

The fourth proportional to 15,951.21, 22,012.20 and 8,877.48 is: 12,250.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,951.21 : 22,012.20 = 8,877.48 : x
  2. Step 2: Convert to fraction form
    15,951.21/22,012.20 = 8,877.48/x
  3. Step 3: Cross multiply
    15,951.21x = 22,012.20 × 8,877.48
  4. Step 4: Simplify right side
    15,951.21x = 195,412,865.26
  5. Step 5: Solve for x
    x = 195,412,865.26/15,951.21
  6. Step 6: Final answer
    x = 12,250.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.